====== Secondary ethernet configuration ====== [[https://www.unipi.technology/gate-c50|Some of our units]] are equipped with secondary ethernet interface. In this tutorial, we will cover the configuration of this interface in Mervis. ;;# Axon S155 \\ Gate ;;# The possible settings of the second interface include: * Static IP or DHCP client * Bridge interface for a primary network (e.g both interfaces act as a switch) * Secondary ethernet cannot act as a backup internet connectivity * PLC cannot act as a router between networks In your solution, left-click on the PLC in the Left panel, move over to the Properties panel, scroll down until you find a section called "**Advanced Network Configuration**" and click on the {{:files:roll-menu-button_01.png?nolink|}} sign to reveal more properties. {{:en:sw:01-mervis:secondary-ethernet-configurartion-01-advanced-network-settings.png?direct|}} Locate the subsection called "**Network card**": {{:en:sw:01-mervis:secondary-ethernet-configurartion-01-network-card.png?direct|}} The options are: * **Name**: internal name of the interface, it cannot be changed and you will not see it anywhere else * **Enabled**: When disabled, the interface will be put into a bridge mode together with a primary network interface. When enabled, following IP settings will take effect * **IP Configuration**: Whether the IP will be set manually or taken from DHCP server * **IP Address**: static IP address for the interface, to be used together with IP Configuration = Static * **Netmask**: netmask of the IP range, to be used together with IP Configuration = Static Change the settings according to your dispositions. These options change the configuration of the MervisRT. As such, the configuration cannot be applied by deploying the project, but rather through "**Upload configuration**". Right-click on the **PLC** in the **Left Panel**, then on the PLC Operation -> PLC Setup -> Upload configuration. If you are not sure, check out the [[en:sw:01-mervis:updating-a-runtime-configuration-hidden|Uploading a RunTime configuration]] tutorial.